Radio inside aerial



E. C. RNDLE RADIO INSIDE AERIAL Filfgd Oct. 19. 1923 Patented Aug. 24, 1926.

PATENT OFFICE.

ELMER COTTRELL BANDLE, OF CINCINNATI, OHIO.

RADIO INSIDE AERIAL.

Application filed October 19, 1923.

The invention relates to inside aerials used in connection with radio receiving apparatus, and has for its object to provide a device of this character Which is relatively small, Which may be placed on top of a table or a receiving set, and easily moved from place to place thereby obviating the use of bnlky inside aerials at present used. A further object is to provide an inside aerial comprising rectangular shape end mom-- bers in spaced relation t-o each other, the Corners of Which are connected together by vertically disposed notched strips formed from insulating material, preferably baitelite, and around Which Strips and in the notches of Which a Wire is Wound spirally, the rectangular shaped members forming a base for the aerial as a whole.

lVith the above and other Objects in view the invention resides in the combination and arrangement of parts as hereina'fter set forth, shown in the drawing, described and claimed, it being understood that changes in the precise embodiment of the invention may be made Within the scope of What claimed Without departing from the spirit of the invention.

In the drawing:-

Fignre 1 a side elevation of the device.

Figure 2 is a top plan view of the device, showing a portion broken away to better show the structure.

Referring to the drawing, the numeral l designates the upper restangular shaped member of the aerial frame and 2 the lower rectangular shaped member, Which members are preferably horizontally disposed and are provided With round openings 3 in axial alignment .so`` that the device may be placed on a horizontal bar for Winding Wire thereon, said openings also allow saving of considerable material. of the rectangular shaped members 1 and 2 are cut away at 4, and extending inwardly Vfrom said cutaway portions 4 are radially disposed slots 5, Which slots receive the ver- The corners Serial No. 6G9,545.

tically and radially disposed insulating strips 6 VWhich are preferably formed from bakelite and are provided along their enter vertical edges With spaced notches 7, Which notches are preferably in staggered relation to each other, Whereby When the aerial Wire is Wound around the frame in the notches 7, Wire Will be spirally arranged, thereby providing a simple construction of aerial as Well as a. compact one, Which may be placed on the top of the receiving panel 9, or on a table. The ends of the Wire 8 are 1 referably passed through apertures 10 in one of the insnlating Strips 6, thereby securing the ends of the Wire in a manner Whereby the Wire cannot become displaced on the frame. The ends of the Wire may then be connected in the usual manner to the aerial binding post ll.

From the above it Will be seen that an inside aerial is provided, Which is simple in construction, compact, the parts redueed to a minininun and one coi'istructed in such a manner Whereby it may be moved from place to place and stored, and if desired may be disposed on top of the receiving set Where it can be easily connected to the aerial binding post.

The iuvention having been set forth What is claimed as new and useful is An inside aerial comprising spaced registering parallel rectangular shaped members, said members having their corners cut oil' thereby forming flat surfaces, vertically disposed relatively thin connecting members connecting said spaced members and disposed in slots in the flat surfaces formed by the cutaWay Corners, said relatively thin connecting members being radially disposed, a plurality of notches carried by the outer edges of the connecting members and a spirally Wonnd Wire extending around the connecting members and in the notches.

In testimony Whereof I have signed my name to this speeification.

ELMER COTTRELL RANDLE, 

